A molecule of CO₂ released into the blood in your left toe can be exhaled from your nose without passing through which of the following structures? A) the pulmonary vein B) the trachea C) the right atrium D) the right ventricle

Question

Quizplus · Accepted Answer

The molecule can bypass the pulmonary vein because it returns oxygenated blood from the lungs to the left side of the heart, and the molecule from the toe would first need to go through the right side of the heart and lungs before reaching the left side.

A Molecule of CO2 Released into the Blood in Your

A Molecule of CO₂ Released into the Blood in Your